np.split() for dividing arrays in NumPy - Mini Project: Build & Apply

Using np.split() to Divide Arrays

📖 Scenario: Imagine you have a list of daily temperatures for a week. You want to split this list into smaller parts to analyze each part separately.

🎯 Goal: You will create a NumPy array of temperatures, set a split index, use np.split() to divide the array, and then print the split parts.

📋 What You'll Learn

Create a NumPy array called temps with exact values: [22, 24, 19, 23, 25, 20, 21]

Create a variable called split_index with the value 3

Use np.split() with temps and [split_index] to split the array into two parts

Store the result in a variable called split_temps

Print the variable split_temps

💡 Why This Matters

🌍 Real World

Splitting data arrays helps analyze different sections separately, like dividing weekly sales data into weekdays and weekends.

💼 Career

Data scientists often split datasets to prepare for analysis, testing, or training machine learning models.

1

Create the NumPy array of temperatures

Import NumPy as np and create a NumPy array called temps with these exact values: [22, 24, 19, 23, 25, 20, 21]

NumPy

import numpy as np
# Create the NumPy array called temps with the exact values
# Your code here

Need a hint?

Use np.array() to create the array with the exact list inside.

2

Set the split index

Create a variable called split_index and set it to the integer 3

NumPy

import numpy as np
temps = np.array([22, 24, 19, 23, 25, 20, 21])
# Create the variable split_index and set it to 3
# Your code here

Need a hint?

Just assign the number 3 to the variable split_index.

3

Split the array using np.split()

Use np.split() with the array temps and the list [split_index] to split the array into two parts. Store the result in a variable called split_temps

NumPy

import numpy as np
temps = np.array([22, 24, 19, 23, 25, 20, 21])
split_index = 3
# Use np.split() to split temps at split_index and store in split_temps
# Your code here

Need a hint?

Call np.split() with the array and a list containing split_index.

4

Print the split arrays

Print the variable split_temps to see the two parts of the array after splitting

NumPy

import numpy as np
temps = np.array([22, 24, 19, 23, 25, 20, 21])
split_index = 3
split_temps = np.split(temps, [split_index])
# Print the split_temps variable
# Your code here

Need a hint?

Use print(split_temps) to display the result.